Method of storing optical information

Details Method of storing optical information Method of storing optical information

1976-10-26

1978-02-21

Fears, Terrell W.

Static information storage and retrieval

Radiant energy

Chemical fluids

346 1, 346160, 346365, 365112, 365119, G11C 1302

Patent

active

040756106

ABSTRACT:
Optical information is stored in a member which includes a layer of electrochromic material and an electrolyte in contact with the electrochromic material. The electrolyte has particles of photoconductive material therein. The member is exposed to optical information such that electron-hole pairs are formed in the photoconductive material. The creation of the electron-hole pairs produces persistent coloration in the electrochromic material in an area which corresponds to the optical information. If desired, the stored information can be erased by applying an electric field to the member.

REFERENCES:
patent: 3691533 (1972-09-01), Bogenberger
patent: 3745538 (1973-07-01), Sharp

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